Home / 6,479.17-8,939-3,646.09

Finding the Fourth Proportional to 6,479.17, 8,939 and 3,646.09

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Solution

The fourth proportional to 6,479.17, 8,939 and 3,646.09 is: 5,030.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,479.17 : 8,939 = 3,646.09 : x
  2. Step 2: Convert to fraction form
    6,479.17/8,939 = 3,646.09/x
  3. Step 3: Cross multiply
    6,479.17x = 8,939 × 3,646.09
  4. Step 4: Simplify right side
    6,479.17x = 32,592,398.51
  5. Step 5: Solve for x
    x = 32,592,398.51/6,479.17
  6. Step 6: Final answer
    x = 5,030.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.